Ultracal 30, a type of gypsum cement, was chosen for the nests because its natural moisture-wicking properties create a stable humidity gradient, allowing the ants to regulate their environment by selecting chambers with their preferred moisture level. To manufacture Ultracal 30 nests with consistent geometry and surface detail, we designed a two-stage molding workflow. First, we created a 3D-printed “mold for a mold” that defines the final nest shape, incorporating draft angles for easier mold removal and textured inner surfaces, applied in Blender, for ant traction. This piece was then filled with two-part silicone to produce a flexible production mold that can withstand repeated casting cycles. Once cured, the silicone captures every detail of the textured chamber walls and floor, allowing the Ultracal 30 to be poured and demolded cleanly while preserving fine features. This approach provides reliable dimensional accuracy, reduces release issues, and makes the manufacturing process scalable for small-batch production. After the nests are made, they are inserted into a 3D-printed case with a water well in one corner to slowly hydrate the Ultracal 30 via a small drain hole at the bottom of a loft extrude. A piece of laser cut acrylic is secured above it, press fit into a 3D-printed lid that is screwed into the case.